Still, Again
Peter Putnam believed the mind’s fundamental goal wasn’t to solve problems or pursue pleasure, but simply to repeat itself. Not in the mechanical sense, but existentially—to restore its own pattern after disruption. In his unpublished theory of mind, he imagined a system that, when perturbed by the environment, learns to act on that environment in such a way that it gets perturbed back into its original state. Repetition wasn’t just survival—it was identity maintenance. It was being. Sleep clarifies this model. We do not have a satisfactory explanation for why conscious experience suspends during sleep rather than simply dimming. The brain remains active—consolidating memory, clearing metabolic waste, cycling through distinct states—and yet experience appears to go away. Not gradually, not in any way we can track, but as a break. Whatever we mean by “self” does not persist through that interval in any accessible sense. And still, something returns. If Putnam is right that the s...